My BOG was a breakthrough after previously using just my inverted L on receive. Its 300 feet fed through a 300 Ohm transformer. The transformer is grounded, but not the far end.
In the last week I added a Wellbrook loop which earned its place as my primary receive antenna in the Stew Perry after a bunch of side by side comparisons. The loop is much higher gain. It can be rotated but I wasn't set up to do so. The loop has slightly more noise than the BOG but way less than the transmit antenna. I've used one before in a different location, and find these to be an under appreciated option. On Dec 30, 2012, at 10:40 PM, "Bruce" <[email protected]> wrote: > > BOG antenna, BOG wire. > > > Yes right on. Not only are there many variables with the earth, but different > wire dielectrics are a big factor. > > I have sold many BOG transformers, and received a lot of feedback. There are > many different results, all but one was able to get a positive out come. That > one insisted on using a TV antenna pre-amplifier. I gained a lot of insight. > > One un-named customer was running his BOG across a highway late many nights. > One night a car came, out of nowhere, at high speed just before he got the > wire secured. It ripped the transformer wire out of his hand. He found it > about 200 yards down the road. He never found the termination, thought to be > attached to the car. Someone must have found it and wondered, What is this? > Now that is real determination to work 160 meter DX. > > Anyway, I do not disagree with anyone with different BOG results. There are > way too many variables. > > 73 > Bruce-K1FZ > ----- Original Message ----- > From: Guy Olinger K2AV > To: Charlie Cunningham > Cc: Bruce ; [email protected] > Sent: Sunday, December 30, 2012 5:53 PM > Subject: Re: Topband: Fw: Short Bogs > > > The characteristics of #12 THHN and such vary all over the map. It is not > being made for use at RF. The insulation not only changes the velocity > factor, but it also adds loss. This too varies all over the map. > > > Wireman has various wires with UV resistant black PE insulation. That stuff > seems to be predictable and stable. I personally don't know of any THHN with > PE insulation. YMMV, of course. Neither of the guys at Home Depot and Lowes > have any idea what I'm talking about if I mention PE insulation. Apparently > plastic is plastic :>). > > > 73, Guy > > _______________________________________________ > Stew Perry Topband Distance Challenge coming on December 29th. > _______________________________________________ Stew Perry Topband Distance Challenge coming on December 29th.
